Fix typo of missing .new for some of the errors. Tests are useful.

[rails.git] / app / models / way.rb

diff --git a/app/models/way.rb b/app/models/way.rb
index 86b25e08e2fb44a9660bc197221e35d109b46f69..637f41e2883580c83b3385ac7db162ead4493a24 100644 (file)
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -27,14 +27,13 @@ class Way < ActiveRecord::Base
 
   def self.from_xml(xml, create=false)
     begin
-      p = XML::Parser.new
-      p.string = xml
+      p = XML::Parser.string(xml)
       doc = p.parse
 
       doc.find('//osm/way').each do |pt|
         return Way.from_xml_node(pt, create)
       end
-    rescue LibXML::XML::Error => ex
+    rescue LibXML::XML::Error, ArgumentError => ex
       raise OSM::APIBadXMLError.new("way", xml, ex.message)
     end
   end
@@ -52,7 +51,7 @@ class Way < ActiveRecord::Base
 
     # This next section isn't required for the create, update, or delete of ways
     if create
-      way.timestamp = Time.now
+      way.timestamp = Time.now.getutc
       way.visible = true
     else
       if pt['timestamp']
@@ -200,10 +199,12 @@ class Way < ActiveRecord::Base
 
   def update_from(new_way, user)
     check_consistency(self, new_way, user)
-    if !new_way.preconditions_ok?
-      raise OSM::APIPreconditionFailedError.new
+    unless new_way.preconditions_ok?
+      raise OSM::APIPreconditionFailedError.new("Cannot update way #{self.id}: data is invalid.")
     end
+
     self.changeset_id = new_way.changeset_id
+    self.changeset = new_way.changeset
     self.tags = new_way.tags
     self.nds = new_way.nds
     self.visible = true
@@ -212,8 +213,8 @@ class Way < ActiveRecord::Base
 
   def create_with_history(user)
     check_create_consistency(self, user)
-    if !self.preconditions_ok?
-      raise OSM::APIPreconditionFailedError.new
+    unless self.preconditions_ok?
+      raise OSM::APIPreconditionFailedError.new("Cannot create way: data is invalid.")
     end
     self.version = 0
     self.visible = true
@@ -223,7 +224,7 @@ class Way < ActiveRecord::Base
   def preconditions_ok?
     return false if self.nds.empty?
     if self.nds.length > APP_CONFIG['max_number_of_way_nodes']
-      raise OSM::APITooManyWayNodesError.new(self.nds.count, APP_CONFIG['max_number_of_way_nodes'])
+      raise OSM::APITooManyWayNodesError.new(self.nds.length, APP_CONFIG['max_number_of_way_nodes'])
     end
     self.nds.each do |n|
       node = Node.find(:first, :conditions => ["id = ?", n])
@@ -245,10 +246,12 @@ class Way < ActiveRecord::Base
     Way.transaction do
       check_consistency(self, new_way, user)
       if RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id",
-                             :conditions => [ "visible = ? AND member_type='way' and member_id=? ", true, self.id])
+                             :conditions => [ "visible = ? AND member_type='Way' and member_id=? ", true, self.id])
         raise OSM::APIPreconditionFailedError.new("You need to make sure that this way is not a member of a relation.")
       else
         self.changeset_id = new_way.changeset_id
+        self.changeset = new_way.changeset
+
         self.tags = []
         self.nds = []
         self.visible = false
@@ -293,13 +296,14 @@ class Way < ActiveRecord::Base
   private
   
   def save_with_history!
-    t = Time.now
+    t = Time.now.getutc
 
-    # update the bounding box, but don't save it as the controller knows the 
-    # lifetime of the change better. note that this has to be done both before 
+    # update the bounding box, note that this has to be done both before 
     # and after the save, so that nodes from both versions are included in the 
-    # bbox.
-    changeset.update_bbox!(bbox) unless nodes.empty?
+    # bbox. we use a copy of the changeset so that it isn't reloaded
+    # later in the save.
+    cs = self.changeset
+    cs.update_bbox!(bbox) unless nodes.empty?
 
     Way.transaction do
       self.version += 1
@@ -331,14 +335,18 @@ class Way < ActiveRecord::Base
       old_way.timestamp = t
       old_way.save_with_dependencies!
 
+      # reload the way so that the nodes array points to the correct
+      # new set of nodes.
+      self.reload
+
       # update and commit the bounding box, now that way nodes 
       # have been updated and we're in a transaction.
-      changeset.update_bbox!(bbox) unless nodes.empty?
+      cs.update_bbox!(bbox) unless nodes.empty?
 
       # tell the changeset we updated one element only
-      changeset.add_changes! 1
+      cs.add_changes! 1
 
-      changeset.save!
+      cs.save!
     end
   end